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Find Water heater repair or service pros in Derry

Avatar for Robert Johnson Plumbing
Robert Johnson Plumbing
4.9(
319
)
Water Heater - Repair or Service

Serving Derry, NH and surrounding areas

Approved

In business since 2009

Free estimates

Offers commercial services

"Robert was very responsive to my request for a water heater replacement. His pricing was competitive, and his crew was prompt and professional. The work was complete less than 24 hours after first contact. I recommend Robert Johnson Plumbing and plan to be a repeat customer, myself"
3 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Daigle Plumbing Heating and Cooling
Daigle Plumbing Heating and Cooling
4.3(
39
)
Water Heater - Repair or Service

Serving Derry, NH and surrounding areas

Approved

In business since 1981

Free estimates

Credit card accepted

"Justin was professional and knew exactly what I needed to fix my existing water heater without trying to upsell me on a much more expensive tankless water heater. He had the relief valve and expansion tank in his truck and was able to install everything without issue. I would recommend hiring them for your plumbing needs!"
9 ZONE On Boiler
3 Zone Boiler
4 Zone Boiler with storage Tank!!!
Oil Tank
6 Zone Boiler W/Storage Tank

+12

Response time1 day
102 neighbors recently requested a quote
Recommended by68%of homeowners
Avatar for Addario, Inc.
Addario, Inc.
3.5(
327
)
Water Heater - Repair or Service

Serving Derry, NH and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Applied for 0% Mass Save heat loan with Addarioâ s Services, and now have a Bosch Bova1.0, 18 Seer heat pump installed today 2-19-21. The only slight glitch was waiting for two parts to modify my old Thermo Pride oil furnace to make it work correctly. I highly recommend Addarioâ s Services for a prompts accurate estimate, installation, and very friendly customer service."
Burnham Alpine Boiler and an Indirect water heater
Burnham Alpine boiler and a separate Ondemand wat
2 Rinnai Combi Boilers
Rinnai on-demand water heater
4 Zone Rinnai Combi Boiler

+110

Response time1 day
561 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Pine Valley Plumbing
Pine Valley Plumbing
5.0(
6
)
Water Heater - Repair or Service

Serving Derry, NH and surrounding areas

Approved

In business since 2024

Free estimates

Offers commercial services

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!\n\n

On the job
On the job
On the job
On the job
On the job

+2

Recommended by16%of homeowners
Showing 1-10 of 45
FAQs for water heater repair or service projects in Derry, NH

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The Derry, NH homeowners’ guide to water heater repair or services

From average costs to expert advice, get all the answers you need to get your job done.